What is Rainforest?
Rainforest operates as a sophisticated Payments-as-a-Service (PaaS) platform, specifically engineered to empower vertical SaaS providers. By offering a robust, white-labeled payment processing architecture, the company enables software vendors to integrate complex financial workflows—including merchant onboarding, card and ACH processing, and automated chargeback management—directly into their existing product suites. This low-code approach effectively abstracts the complexities of compliance and risk mitigation, allowing vertical SaaS companies to monetize their payment flows without the overhead of building proprietary financial infrastructure from the ground up.
How much funding has Rainforest raised?
Rainforest has raised a total of $60.8M across 3 funding rounds:
Angel/Seed
$11.8M
Series A
$20M
Series B
$29M
Angel/Seed (2023): $11.8M with participation from Fintech Fund Services, Tech Square Ventures, Accel, Infinity Ventures, and BoxGroup
Series A (2024): $20M led by Matrix Partners, Accel, and Ardent Venture Partners
Series B (2025): $29M supported by Tech Square Ventures, Accel, Infinity Ventures, and Matrix Partners
Key Investors in Rainforest
Accel
A global venture capital firm that partners with exceptional teams from the inception of their ideas through all phases of private company growth.
Matrix Partners
A long-standing venture capital firm founded in 1977, focusing on software, services, and internet infrastructure sectors.
Tech Square Ventures
An early-stage investment firm that partners with visionary entrepreneurs to build innovative enterprise solutions, particularly in B2B and marketplace technology.
What's next for Rainforest?
With the successful closure of this major strategic investment, Rainforest is well-positioned to accelerate its market penetration and deepen its technical capabilities. The company is expected to focus on scaling its engineering teams to enhance its suite of low-code components, ensuring that its platform remains the gold standard for embedded finance. Furthermore, the capital will likely be deployed to expand its footprint within the competitive vertical SaaS landscape, potentially targeting new industry verticals that require specialized payment processing solutions. As the firm matures, its focus will shift toward optimizing operational efficiency and strengthening its risk management frameworks to support larger enterprise clients, thereby cementing its role as a critical utility in the modern digital economy.
See full Rainforest company page
